Its about 10 miles further on to Kamiah.
yes that time of night traffic would be rare(even now) except on Fair Weekend a good portion of Pierce and Weippe could be expected to be heading back up the Greer Grade to home.
If Lonnie was on the Greer side of the bridge heading for the bottom of the grade anyone passing down HWY12 say coming from Missoula headed towards Lewiston(such as a Salesman or truck driver) or going the other direction would never have seen him.
But anyone headed up the hill to Weippe probably couldnt have missed him which is obviously what Lonnie was counting on.
Only the timing doesn't feel right. The fair closed at what? 11:00? And the two teenagers picked him up that the Orofino bridge at 12:30. That means 1 1/2 hours later. So where was he in this time. That's gap one.
Next thing, they drop him in Greer. So, this is ab. 7 miles down the highway. Makes it what? 10 minutes, 15 tops. So we end up with 12:45.
From the ME, we know, he was killed ab. 4 hours after his last meal. Since the food places at the fair closed about 10:30, this would be 2:30 am then. So we have theoretically a gap two of 1 hour 45 minutes in which not only the murder occurred but also the abduction and the rape. But thinking twice makes me think, with every step, Lonnie made direction Weippe, the time window closed more. It became later and later. The fair was now closed since almost three hours, so virtually the chances someone was still on the way home form the fair were virtually nothing. That traffic was through since an hour or longer. Same thing for salesmen. At that time of the night, they would be in a motel because it's too early to be arrive somewhere else for a morning appointment or ringing door bells.
So, adding this together:
A time window of 1:45 at a time in the night, nobody had any reason to drive that road. Also, an offender on the hunt wouldn't lurk there because his chances were like zero to find there a fitting victim. He would go for the victim-rich environment and that was the fair and hours earlier.
But then, the only way to get Lonnie would have been to follow him. Which is not what happened, because this kind of offender would have attacked at the earliest opportunity, he would find his targeted victim alone. Before 12:30 at that bridge. The two teenagers never would have picked up Lonnie because he wouldn't have been there anymore.
But they did. He was there. And according to their testimony, they transported him to an area, where there was virtually no chance, he could cross the path of any hunting offender. 1 hour 45 minutes would place Lonnie, if he immediately start to walk where? Over five miles down the road if he was in good shape. That is, if I understand right, half the way. Or Lonnie was picked up earlier on the way. Lets say 30 minutes later. That would place him well before the site, he was later found. But as you said, he would have been invisible for any driver coming from Weippe. So virtually no chance, someone was there at the time driving and now even half of that.
Maybe we should look into those teenagers again, who gave him a ride and find this police officer, who wanted to write a book.
Peter